Shelly Flood Gen4

The Shelly Flood Gen4 detects leaks the moment they happen – so you can stop water damage before it gets bigger – with instant alerts directly to your mobile device or home automation system.

With its precise leak sensor cable and smart home compatibility, it offers an easy way to protect your property. Whether you’re a smart home user, a holiday homeowner, or managing multiple properties, this device lets you monitor and control leaks from anywhere.

Stay one step ahead of water damage and catch unexpected issues before they escalate. Delivers real-time alerts and fits perfectly into your smart home system. Ideal for basements, kitchens, garages, laundry rooms, holiday homes or any area at risk.

With support for Wi-Fi, Bluetooth and Zigbee, you can integrate it into a wide range of smart home systems without needing a hub – including Home Assistant!

• Flood & Rain Detection – Detects leaks, spills, or rainwater intrusion with instant alerts to your phone or home automation system
• Multiprotocol connectivity – Highly compatible! Choose the best protocol for your smart home – Wi-Fi, Bluetooth or Zigbee
• Extended Leak Sensor Cable – Monitor hard-to-reach places for broader coverage
• Battery-powered – Powered by 4x AA 1.5V (included) for reliable, low-maintenance protection
• Customizable Alert Modes – Choose from three smart alarm styles: Intense, Normal, and Economic
• Smart Scenes & Automation – Set automation scenarios, like turning off appliances, by combining Shelly Flood Gen4 with your other Shelly or third-party devices.

You may require a Zigbee gateway to use this device with Zigbee in your home automation system. Check out our Zigbee section for some great USB options, many of which are Raspberry Pi-compatible.

Shelly Gen4 device

Experience next-level smart home automation with Shelly Gen4. Each Gen4 device offers multi-protocol connectivity, featuring Wi-Fi, Bluetooth, Zigbee, and Matter. Choose your connection and set up your Shelly device to work with your preferred smart home network in no time.

Features

• New: Multiprotocol connectivity: Choose from Bluetooth, Wi-Fi or Zigbee
• Matter-certified: Integrates into any Matter ecosystem
• Leak detection: 2m extendable leak sensor cable for coverage in small and large areas
• Supports two modes: Flood Detection and Rain Detection
• Three built-in flood alarm modes: Intense, Normal, and Economic
• Battery-powered: For flexibility and uninterrupted operation, included in the pack
• Protection class IP44: Built tough with an IP44 environmental resistance design
• Smart automation: Supports local automation actions for independent operation
• Control from anywhere: Use the Shelly Smart Control App or your favourite automation platform.
• Works with all major systems: Apple HomeKit, Google Home, Home Assistant

Specifications

Physical
Size (HxWxD)	97×76×25 mm
Weight	91g (without batteries) 185g (with batteries)
Mounting	Wall
Shell material	Plastic
Shell color	White
Environmental
Ambient working temperature	-20°C to 40°C
Humidity	30% to 70% RH
Max. altitude	2000m
Electrical
Power supply	Batteries
Battery type	4× AA 1.5 V
Estimated battery life	Approx. 2 years (depending on batteries used, device usage, and network connection strength)
Sensors, meters
Leak sensor cable	2 m, extendable (up to 150 m), attaches via designated port
Radio – Wi-Fi
Protocol	802.11 b/g/n/ax
RF band	2401 – 2483 MHz
Max. RF power	< 20 dBm
Range	Up to 30m indoors and 50m outdoors (depends on local conditions)
Radio – Bluetooth
Protocol	5 (LE)
RF band	2402 – 2480 MHz
Max. RF power	< 20 dBm
Range	Up to 10m indoors and 30m outdoors (depends on local conditions)
Radio – Zigbee
Protocols	802.15.4
RF bands	2405 – 2480 MHz
Max. RF power	< 20 dBm
Range	Up to 100m indoors and 300m outdoors (depends on local conditions)
Microcontroller unit
CPU	ESP-Shelly-C68F
Flash	8 MB
Firmware capabilities
Schedules	No
Webhooks (URL actions)	10 with 2 URLs per hook
Scripting	No
MQTT	Yes
UDP	Yes
KVS (Key-Value Store)	Yes

Resources

• Shelly Product Documentation
• Printed User Guide (as found within the package)
• Components and APIs
• Declaration of Conformity
• Device Identification
  • Device name: Shelly Flood Gen4
  • Device model: S4SN-0071A
  • Device SSID: ShellyFloodG4-XXXXXXXXXXXX
  • Device Bluetooth ID: 0x1822
• EAN: 3800238071714

Handy Shelly Resources

• Shelly Cloud
• Shelly App
  • Apple App Store
  • Google Play
  • Huawei AppGallery
• Home Assistant Shelly Integration
• Shelly Community Forum
• Shelly Facebook Support Group
• Shelly Knowledgebase
• Shelly Device Finder (easy-to-use software to find Shelly devices in the local network)
• Shelly Developer API

Package Contents

• 1x Shelly Flood Gen4 (4x AA batteries included)
• 1x User Guide